Delivering and stacking mechanism



Feb. 19, 1935. A. NOVlCK DELIVERING AND STACKING MECHANISM Filed. July 24, 1929 3 Sheets-Sheet 1 INVENTOR Abra/mm Nay/ck.

ATTORNEYS Feb. 19, 1935. A ov c 1,991,411

DELIVERING AND STACKING MECHANISM Filed July 24. 1929 5 Sheets-Sheet 2 INVENTOR Abra/24m A/ wc/r.

& ATTORNEYS Feb. 19, 1935. A NowcK 1,991,411

DELIVERING AND STACKING MECHANISM INVENTOR Abra/7am Nowc/r.

ATTORN EYS accura Patented Feb. 19, 1935 UNITED STATES PATENT OFFICE 1,991.411' nanivnamo AND STACKING meouaiusm The present invention-relates Abraham Novick.

Smithe Machine 00.,

Flushing, N. Y., assignor to L.

Inc., New York, N. Y., a

x oorporation of New York Application July 24, 1929, Serial No. 380,507

7 Claims.

to improvements in delivery and stacking mechanisms for envelope making machines and has for its object the provision of such a machine which will rapidly and tely receive the envelopes from the folding mechanism of an envelope making machine, for example, and deliver them stacked to a table or .other appropriate means for receiving them.

Other and more specific objects to be attained and advantages of the invention will be apparent as the description proceeds, the features of novelty being specifically p ointed out in the appended claims. For a complete understanding of the invention reference is now had to the following detailed description, taken with the annexed drawings, in which Figure 1 is a view partly in vertical section of an illustrative embodiment;

Figure 2 is a plan view of the machine on a somewhat larger scale than the preceding figure;

and

Figure 3 is an elevational view partly in ver tical section on a still larger scale of the mechanism receiving thestack of blanks.

Reference to Figure 1 of the accompanying drawings will indicate in a general way the opmit it to be engaged by pushing elements on a traveling conveyor which move the successive blanks along a guide-way, shown, and within the reach of the stacking mechanism shown in detail, Figure 3, this mechanism serving to remove the envelopes from the conveyor and bring them into stacked condition as shown in said figure. Means are also provided for insuring the correct positioning of the envelopes as received and for maintaining the received envelopes in correct position while fresh envelopes are admitted to the stack.

Referring to the drawings by characters of reference, A denotes generally the end of the folding mechanism proper, the same comprising a jaw member 10 which together with a movable stop 11 and a cooperating stationary jaw member bite of rollers 15 and The blanks thus fed from the folding mechanism are received by suitable mechanism-which in the embodiment shown comprises a pair of oppositely disposed belts and 21. Belt 20 passes around pulleys 22, 23 and belt 21 passes around pulleys 24, 25 and also a large pulley 26 contained on a shaft 2'7. On shaft 27 are also mounted a pair of sprocket wheels 28, 29 around which pass respectively chains 30, 31 which latter also pass around sprockets 32, 33 at the further reach thereof. Each chain and 31 contains a plurality of engaging members 35, 35. It will be noted that the engaging members of each chain 10 are in more or less exactly the same phase. The purpose of these members is to engages the ends of the blanks held between conveyor bands 20 and 21in order to convey them to the stack mechanism. Cooperating with such members 15 are a plurality of guides 36, 37, 38, 39, Figure 2, which are supported on one end by means of a bar 40 around a portion of the periphery of which they extend as shown in Figure 1, while' at the opposite ends they are supported on a 20 shaft 42 by means of ears 43 which are secured to the shaft by set screws 44, the arrangement being such as to permit of adjustment of guides 36 to 39 with respect to the chains 30 and 31. From the foregoing it will be seen that the action 25 of the-members 35 is to engage the rear edge of the blank as seen in Figure 2 and push it along the guide-ways 36 to 39 to the stacking mechanism at the right of Figure 1. For accurate adjusting of the chains, each of them has a coop- 30 crating idler roll 46. Furthermore, in order not to damage the envelopes by their engaging action such members 35 are preferably constituted of a resilient material in the nature of a brush as is best shown in Figure 3. Moreover, it will be 35 noted that by providing a suitable spacing of the guides 36, 37, 38 and 39 from the chains 30 and 31, the envelopes may be propelled along the guide-ways by the mere pushing action of the engaging members 35, and that pinching or other 40 undesired deformation of the envelopes is avoided. Ashereinbefore noted, the proper adjustment of the distances between the guides and the chains is provided for by the set screws 44.

Passing now to a description of the stacking mechanism, this consists of a table 50, Figure 3, and a cover portion 51 preferably of special construction and comprising a plurality of members 51 attached to a cross bar 52 extending the width of the table. As shown in Figures 1 and 3, this cross bar carrying the members 51 is adjustable in height by means of the standards 53 which pass thru to table 50 through sleeves 54 and are held in adjusted position by gear rack 55 out therein and pinion 56 meshing therewith, which 55 latter communicates with a hand wheel 57 through a shaft 58. Turning the wheel 57 thus moves both standards by the same amount. Preferably the members constituting the cover portion are provided with engaging plates 60 which are capable of movingupwardly a slight distance against members 51 due to the arrange- 61 which, while sustaining member 51, pass through such members and permit the plate to have a slight play upwardly from the position shown in Figure 3. At least one o! the plates 60, preferably the middle one. is provided with an obliquely extending deflecting portion 68 in order to insure that the envelopes are carried into the space between the plates 50 and 60 and to prevent the seal flaps of the envelopes from opening or buckling.

'65aremovedsoasto For the purpose of transferring the blanks to the table and to free them from the pusher members 35, oscillating fingers or deflectors 65 are provided which in the embodiment shown are secured by means or a link 67, attached to operating in, not shown. Accordingly, at the proper time, i. e., when the members carried by the conveyor chains are in the position shown by Figure 3, the deflecting members carry the envelope borne by members 35 onto the table 50 with the edge only oi. said envelope in contact with said table. In order not to disturb the envelopes already fed to said table a latch mechanism is provided both at the level of said table and above same, such lower latch mechanism consisting of a latch 68 pivoted at 69 and operated by means of a lever 70 pivoted at 71 and provided with a portion 72 serving as a weight to maintain the latch in holding position. A latch 74 also operated by gravity is provided to be engaged by the tops of the envelopes, such latch being pivoted at 75 and being disposed in suitable slots in the cover portions 51 and 60. In order that the blanks may be stacked under the proper compression, a weight 77 is disposed on said table at the remoteend of the stack, this weight being pushed along by the action of the envelopes received on the table.

In operation the envelopes which have been received from the folding mechanism by means of the conveyor bands 20 and 21 are engaged by the members 35 on the conveyor chains 30 and 31 as has already been described and brought to the stacking mechanism. As each member 35 nears the position shown in Figure 3 the deflector 65 is moved to transfer same from said members 35 against the stack already formed or if it is the first envelope in the stack against the weight 7'7. The action of the deflector 65 is such as to bring the envelope through the latches 68, 74 which thus support the stack at its receiving end. It will be noted that by virtue of conveying mechanism shown it is possible to locate the receiving table at a conveniently accessible point beyond the envelope folding machine and at a suitable distance above the floor. Conveyors 30, 31, it will be noted, move at a speed considerably in excess of the conveyors 20, 21, with the result that the envelopes are further spaced apart, thereby allowing greater freedom of movement of the stacking element 65.

It will be evident that I have provided a rapid and accurate mechanism for delivering the envelopes from the folding machine to the stacking table, such action being more or less the reverse t0 8. shaft 66 which is oscillated It will be understood that various changes may be made within the embodiment specifically described without departing from the spirit of the invention and the scope of the appended claims.

Iclaim: 1. In a stack posed so as to be operated by said envelopes upon their arrival at said table whereby the latter are upon their arrival at said-table whereby the latter are prevented from dropping backward from off said table receiving means, said conveyor having resilient means in the form of brushes, for engaging the edges of said envelopes. and stacking device, a table for holding the stacked sheets, means for receiving the sheets from a machine which has performed an operation upon them and delivering them to said table, including a pair of conveyors adapted to hold and convey the sheets between them, one of said conveyors terminating short of the other, means including a third conveyor, a resilient finger carried thereby and a track extending from said first two conveyors to said table and disposed so as to permit said finger to push the individual sheets therealong.

6. In a device for delivering and stacking envelopes from an envelope folding machine, means for receiving said envelopes from said machine, a table for the stacked envelopes, and means including a conveyor individually taking the envelopes from said receiving means and presenting them in a substantially vertical position to the stacking device above said table, said stacking device including a deflector above said table against which the leading edge of the envelope strikes and by which it is deflected toward the stack, and means to move the deflected envelope against the stack.

7. In a sheet delivering and stacking device, a table for holding the stacked sheets, means for receiving the sheets from a machine which has performed an operation upon them and delivering them to said table, including a pair of conveyors adapted to hold and convey the sheets between them, one of said conveyors terminating short of the other, a third conveyor delivering the sheets from the first two conveyors to said table, anda transfer device comprising a track member ABRAHAM NOVICK. 

